I have tried the clever dripper and have been very impressed with the results. The clever seems to simplify and improve upon a design that has been in existence for over a hundred years. I was sort of dumbfounded that no one thought to do something similar before now.

...tea brewer that claims to work for coffee. It is very similar in design with a couple of differences. The brewt appears to not need a filter, but one can be used? It seems to have a steeper, "non ribbed" cone, it holds more volume, and it has a lid to preserve heat during brewing. Has anyone used the brewt for coffee? What are you impressions? Would you recommend it for coffee or is it really more of a tea brewer? Has anyone used both the brewt and the clever? How do they compare?

A big upside of the Brewt is the clear non-BPA plastic, but the shape doesn't hold paper filters quite as well as the Clever / Abid.

The filter doesn't work 100% for brewing coffee, the last 2 or so ounces stalls as it is a little too narrow and there is no pressure to bring it out. If the grinds are sifted it works much better. It's really designed for tea and it does a fantastic job of that.

I'm really optimistic about this method of brewing: full saturation, bottom filtration... hoping for some improvements in the filter design and glass construction.

Paper filters are a pain, and have downsides. Re-usable filters (cloth, metal-mesh, nylon-mesh, socks, fingers, etc.) have downsides too. In my experience, paper filters are best, if only in a lesser-of-two-evils sort of way.

I've tried the "Brewt" type thing (branded as a Teavana product), and experienced the same stalling as Alistair.

One of the things that I like about the Clever dripper is that the wide upper portion thins-out the floating coffee-grounds crust, which I think helps extraction. Granted, more heat-loss that way, but everything's a trade-off, ain't it?

I have another type of immersian brewer which is similiar to these but is a bit more manual than being clever. The brewing chamber is less cone like in shape and it uses a fixed metal filter rather than a paper one. The coffee and water mix is kept suspended above the cup by a small ball bearing that covers a hole at the bottom on the chamber. When you are ready you have to lift the ball bearing up (there is a mechanism to do this, all you have to do is push a rod downwards) and the coffee filters down into the cup.

I can't remember the name now, but I picked it up in Tokyo where it is quite common.